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2002 Isuzu Trooper Question: check engine



Mira MM, 3.5L V6, Northern Cambria, PA, May 19, 2011, 09:32

what is code p-1870 no dtc?

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  • Answer #1

    overbys from Overbys Inc, May 19, 2011, 10:44

    this is a transmission fault; here's some info:

    Range switch malfunction could set a DTC P1870.

    A mechanical failure of the shift solenoids, TCC solenoid, or TCC PWM solenoid could set a DTC P1870.

    Internal transmission failures may set a DTC P1870.
    An intermittent or incorrect engine speed signal may set a DTC P1870.

    there are several tests a shop can run to identify the cause. definitely not a DIY repair.

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